At least for an LTS distribution (xenial here) I expect that an update of an essential program (like firefox) will NOT remove the support for the most basic linux audio interface (ALSA) so that audio is broken for those who rely on that interface.
Please re-enable ALSA support by compiling firefox with "--enable-alsa", see https://support.mozilla.org/hwsfp35778/board/message?board.id =Privacy-Security&message.id=1037477#M1037477 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1671273 Title: PulseAudio requirement breaks Firefox on ALSA-only systems Status in firefox package in Ubuntu: Confirmed Bug description: Upgrading Firefox to version 52 on an ALSA-only system breaks audio on all websites. PulseAudio has apparently become a hard requirement in the latest official build of Firefox, but since PulseAudio is (due to its design) not viable on some systems, this renders Firefox useless as a general- purpose browser. The upstream code still contains ALSA support. Please re-enable it on Ubuntu. I have read that Arch Linux has already done so. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1671273/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
